405002164 has 24 divisors (see below), whose sum is σ = 811722240. Its totient is φ = 173204256.

The previous prime is 405002159. The next prime is 405002173. The reversal of 405002164 is 461200504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1687 + ... + 28510.

It is an arithmetic number, because the mean of its divisors is an integer number (33821760).

Almost surely, 2^405002164 is an apocalyptic number.

It is an amenable number.

405002164 is an abundant number, since it is smaller than the sum of its proper divisors (406720076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405002164 is a wasteful number, since it uses less digits than its factorization.

405002164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30687 (or 30685 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 405002164 is about 20124.6655624385. The cubic root of 405002164 is about 739.8649400457.

Adding to 405002164 its reverse (461200504), we get a palindrome (866202668).

The spelling of 405002164 in words is "four hundred five million, two thousand, one hundred sixty-four".